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Identification of Fusarium wilt resistance gene SiRLK1 in Sesamum indicum L.

The Crop Journal 2024年第1期12卷 252-261页

作者： Yinghui Duan Wenwen Qu Shuxian Chang Ming Ju Cuiying Wang Cong Mu Hengchun Cao Guiting Li Qiuzhen Tian Qin Ma Zhanyou Zhang Haiyang Zhang Hongmei Miao The Shennong laboratory Zhengzhou 450002HenanChina henan sesame research center Henan Academy of Agricultural SciencesZhengzhou 450002HenanChina key laboratory of specific oilseed crops genomics of henan Province Henan Sesame Research CenterHenan Academy of Agricultural SciencesZhengzhou 450002HenanChina

sesame Fusarium wilt(SFW),caused by Fusarium oxysporum ***(Fos),is one of the most devastating diseases affecting sesame *** the genetic control of SFW resistance is pivotal for effective disease management in *** inheritance study on a cross between the highly resistant variety Yuzhi 11 and the highly susceptible accession Sp1 using a Fos pathogenicity group 1 isolate indicated that resistance was conferred by a single dominant *** target locus was located in a 1.24 Mb interval on chromosome 3 using a combination of cross-population association mapping and bulked segregant *** genetic mapping further narrowed the interval between 21,350 and 21,401 *** locus Sindi_0812400 was identified as the SFW resistance gene and officially designated *** gene encodes a specific malectin/receptor-like protein kinase with three putative tandem kinase domains and is considered a kinase fusion *** analysis revealed that a high proportion(49.44%)of variants within the locus was located within the kinase domainⅢ,and several of which were evidently associated with the diversity in SFW response,indicating the critical role of kinase domainⅢin expression of disease *** findings provide valuable information for further functional analysis of SFW resistance genes and marker-assisted resistance breeding in sesame.

关键词： Breeding for resistance Genetic analysis Molecular analysis Tandem kinase domain

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Deletion of a 1,049 bp sequence from the 5′UTR upstream of the SiHEC3 gene induces a seed non-shattering mutation in sesame

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Journal of Integrative Agriculture 2024年第8期23卷 2589-2604页

作者： Ming Ju Guiting Li Qiuzhen Tian Hengchun Cao Qin Ma Yinghui Duan Hui Guo Zhanyou Zhang Yingying Huang Huili Wang Haiyang Zhang Hongmei Miao The Shennong laboratory Zhengzhou 450002China henan sesame research center Henan Academy of Agricultural SciencesZhengzhou 450002China key laboratory of specific oilseed crops genomics of henan Province Henan Sesame Research CenterHenan Academy of Agricultural SciencesZhengzhou 450002China

sesame is a labor intensive crop with limited mechanized harvesting mainly due to the seed shattering(SS)*** this study,we performed a genetic analysis of the seed-shattering resistance(SR)trait with a SR sesame mutant *** the SS type,the parenchyma cells in the abscission zone of the 12M07 mutant are arranged loosely but adhere to the seed *** analysis of six generations derived from 12M07(SR)×Xiangcheng Dazibai(SS)showed that the SR trait is recessive and controlled by a single gene *** mapping of the F2population with 888,619 variants(single-nucleotide polymorphisms(SNPs)and insertion-deletion(InDels))and 31,884 structural variations(SVs)determined that only SV12002 in the 5′upstream region of gene Sindi0765000(named SiHEC3)in Chr.3 was significantly associated with the SR ***3 encodes the bHLH transcription factor.A 1,049 bp deletion occurred in the 5′UTR of Sihec3 in ***3 is mainly expressed in developing placental tissues,with the expression peaking in capsules at 45 days after pollination.A dual-luciferase reporter assay in tobacco confirmed that the promoter activity of Sihec3 was reduced because of the deletion of the 1,049 bp promoter ***–protein interaction network analysis showed that HEC3 is co-expressed with nine key proteins,such as SHATTERPROOF1(SHP1)and SEEDSTICK(STK)which participate in the secondary wall biosynthesis of the abscission layer in *** findings of this study show the important function of Sihec3corresponding with the SR trait and supply the genetic information for breeding new varieties that are amenable to mechanized harvesting in sesame and other crops.

关键词： sesame(Sesamum indicum L.) association mapping seed shattering structure variation bHLH transcription factor

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Genetic and lipidomic analyses reveal the key role of lipid metabolism for cold tolerance in maize

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Journal of Genetics and genomics 2024年第3期51卷 326-337页

作者： Lei Gao Haifang Jiang Minze Li Danfeng Wang Hongtao Xiang Rong Zeng Limei Chen Xiaoyan Zhang Jianru Zuo Shuhua Yang Yiting Shi State key laboratory of Plant Environmental Resilience College of Biological SciencesFrontiers Science Center for Molecular Design BreedingCenter for Crop Functional Genomics and Molecular BreedingChina Agricultural UniversityBeijing 100193China State key laboratory of Wheat&Maize Crop Science College of Life SciencesHenan Agricultural UniversityZhengzhouHenan 450002China State key laboratory of Plant genomics Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Suihua Branch of Heilongjiang Academy of Agricultural Machinery Sciences SuihuaHeilongjiang 152052China

Lipid remodeling is crucial for cold tolerance in ***,the precise alternations of lipidomics during cold responses remain elusive,especially in maize(Zea mays L.).In addition,the key genes responsible for cold tolerance in maize lipid metabolism have not been ***,we integrate lipidomic,transcriptomic,and genetic analysis to determine the profile of lipid remodeling caused by cold *** find that the homeostasis of cellular lipid metabolism is essential for maintaining cold tolerance of ***,we detect 210 lipid species belonging to 13 major classes,covering phospholipids,glycerides,glycolipids,and free fatty *** lipid metabolites undergo specific and selective alterations in response to cold stress,especially mono-/di-unsaturated lysophosphatidic acid,lysophosphatidylcholine,phosphatidylcholine,and phosphatidylinositol,as well as polyunsaturated phosphatidic acid,monogalactosyldiacylglycerol,diacylglycerol,and *** addition,we identify a subset of key enzymes,including ketoacyl-acyl-carrier protein synthase II(KAS II),acyl-carrier protein 2(ACP2),male sterility33(Ms33),and stearoyl-acyl-carrier protein desaturase 2(SAD2)involved in glycerolipid biosynthetic pathways are positive regulators of maize cold *** results reveal a comprehensive lipidomic profile during the cold response of maize and provide genetic resources for enhancing cold tolerance in crops.

关键词： Maize Cold stress Lipid metabolism Transcriptome Lipidomic

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Introgression of lac6/tl1/du13 improves the palatability of japonica rice

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The Crop Journal 2024年第4期12卷 1259-1265页

作者： Yong Yang Tao Zhang Yuliang Shi Yan Lu Qianfeng Li Xiaolei Fan Lichun Huang Lu Chen Xuetang Song Qing Liu Changquan Zhang Qiaoquan Liu Jiangsu key laboratory of Crop genomics and Molecular Breeding/Zhongshan Biological Breeding laboratory/key laboratory of Plant Functional genomics of the Ministry of Education Agricultural College of Yangzhou UniversityYangzhou 225009JiangsuChina Jiangsu Co-Innovation center for Modern Production Technology of Grain crops/Jiangsu key laboratory of Crop Genetics and Physiology Yangzhou UniversityYangzhou 225009JiangsuChina Jiang Su(Wu Jin)Rice research Institute Changzhou 213175JiangsuChina

Amylose content(AC)is a crucial determinant of the eating and cooking quality(ECQ)of rice,with low AC varieties exhibiting a softer texture and greater stickiness-attributes that enhance palatability and are desirable in specific culinary *** harness these traits,significant efforts have been made to manipulate AC to improve rice *** research utilized the MutMap+approach to identify LAC6/TL1,a gene that is an allele of Du13,responsible for low ***6 encodes a C2H2 zinc finger protein,which specifically increases the splicing efficiency of the Wxb allele without affecting the Wxa *** studies of LAC6 revealed that its proper integration could rectify the undesirable AC phenotype,whereas mutations within this gene led to reduced AC and were associated with shorter grain length and decreased thousand-grain *** these drawbacks,such mutations positively impact rice palatability,presenting a trade-off between grain size and eating *** address the challenges posed by the reduced grain weight associated with LAC6 mutations,we developed a specific molecular marker for LAC6,which has been effectively used in breeding programs to select lac6/tl1/du13 homozygous individuals with larger grain *** findings demonstrate that the“small grain”trait associated with lac6/tl1/du13 can be effectively mitigated through combined phenotype-based and marker-assisted *** study highlights the potential of lac6/tl1/du13 as a valuable gene for breeding novel,high-quality soft rice varieties through targeted breeding strategies.

关键词： Rice Dull endosperm Amylose content Wx Breeding

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Endomembrane-biased dimerization of ABCG16 and ABCG25 transporters determines their substrate selectivity in ABA-regulated plant growth and stress responses

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Molecular Plant 2024年第3期17卷 478-495页

作者： Yeling Zhou Yuzhu Wang Dong Zhang Jiansheng Liang institute of Plant and Food Science Department of BiologySchool of Life SciencesSouthern University of Science and Technology(SUSTech)Shenzhen 518055China key laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes Southern University of Science and Technology(SUSTech)Shenzhen 518055China jiangsu key laboratory of Crop Genetics and Physiology/Co-lnnovation center for Modern Production Technology of Grain crops Key Laboratory of Plant Functional Genomics of the Ministry of EducationYangzhou UniversityYangzhou 225009China

ATP-binding cassette(ABC)transporters are integral membrane proteins that have evolved diverse func-tions fulfilled via the transport of various *** Arabidopsis,the G subfamily of ABC proteins is particularly abundant and participates in multiple signaling pathways during plant development and stress *** this study,we revealed that two Arabidopsis ABCG transporters,ABCG16 and ABCG25,engage in ABA-mediated stress responses and early plant growth through endomembrane-specific dimerization-coupled transport of ABA and ABA-glucosyl ester(ABA-GE),*** first revealed that ABCG16 contributes to osmotic stress tolerance via ABA *** specifically,ABCG16 induces cellular ABA efflux in both yeast and plant *** FRET analysis,we showed that ABCG16 forms oblig-atory homodimers for ABA export activity and that the plasma membrane-resident ABCG16 homodimers specifically respond to ABA,undergoing notable conformational ***,we demonstrated that ABCG16 heterodimerizes with ABCG25 at the endoplasmic reticulum(ER)membrane and facilitates the ER entry of ABA-GE in both Arabidopsis and tobacco *** specific responsiveness of the ABCG16-ABCG25 heterodimer to ABA-GE and the superior growth of their double mutant support an inhib-itory role of these twoABCGs in early seedling establishment via regulation of ABA-GE translocation across the ER *** endomembrane-specific analysis of the FRET signals derived from the homo-or heterodimerized ABcG complexes allowed us to link endomembrane-biased dimerization to the transloca-tion of distinct substrates by ABcG transporters,providing a prototypic framework for understanding the omnipotence of ABcG transporters in plant development and stress responses.

关键词： abscisic acid ABCG transporter dimerization endomembrane substrate selectivity

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Production profile and comparison analysis of main toxin components of Fusarium oxysporum *** isolates with different pathogenicity levels

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Oil Crop Science 2023年第2期8卷 104-110页

作者： Hailing Li Yinghui Duan Guizhen Xu Shuxian Chang Ming Ju Yin Wu Wenen Qu Hengchun Cao Haiyang Zhang Hongmei Miao The Shennong laboratory Zhengzhou450002People's Republic of China henan sesame research center Henan Academy of Agricultural SciencesZhengzhou450002People's Republic of China henan key laboratory of specific oilseed crops genomics(henan sesame research center Henan Academy of Agricultural Sciences)Zhengzhou450002People's Republic of China Institute of Cereal and Oil crops Hebei Academy of Agriculture and Forestry SciencesShijiazhuang050035People's Republic of China

Fusarium wilt is a common fungal disease in sesame caused by Fusarium oxysporum ***(FOS).To determine the toxin production profiles of the FOS isolates with different pathogenicity levels under various culture conditions,we assessed the content variation of fusaric acid(FA)and 9,10-dehydrofusaric acid(9,10-DFA)produced by the four representative FOS *** indicated that the concentration of FA reached to a maximum of 2848.66μg/mL in Czapek medium,while 9,10-DFA was mainly produced in Richard and Lowcarbon Richard *** concentration of 9,10-DFA on Richard culture medium varied from 0μg/mL to 716.89μg/*** the five culture media used in this study,Czapek culture medium was the most conductive to produce *** production was significantly affected by culture medium,culture time,and their *** suggest that there is no correlation between toxin production and pathogenicity level of FOS *** findings provide key information for the mechanism analysis of FOS-sesame interaction and pathogen control.

关键词： Fusarium oxysporum Fusaric acid 9,10-dehydrofusaric acid Pathogenicity level

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Versatile plant genome engineering using anti-CRISPR-Cas12a systems

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Science China Life Sciences 2024年

作者： Yao He Shishi Liu Long Chen Dongkai Pu Zhaohui Zhong Tang Xu Qiurong Ren Chuan Dong Yawei Wang Danning Wang Xuelian Zheng Fengbiao Guo Tao Zhang Yiping Qi Yong Zhang Integrative Science center of Germplasm Creation in Western China (Chongqing) Science City Chongqing Key Laboratory of Tree Germplasm Innovation and Utilization School of Life Sciences Southwest University Department of Biotechnology School of Life Sciences and Technology Center for Informational Biology University of Electronic Science and Technology of China Sichuan Institute of Edible Fungi Sichuan Academy of Agricultural Sciences Jiangsu key laboratory of Crop genomics and Molecular Breeding/Zhongshan Biological Breeding laboratory/key laboratory of Plant Functional genomics of the Ministry of Education College of AgricultureYangzhou University Jiangsu Co-Innovation center for Modern Production Technology of Grain crops/Jiangsu key laboratory of Crop Genetics and Physiology Yangzhou University Department of Respiratory and Critical Care Medicine Zhongnan Hospital of Wuhan University key laboratory of Combinatorial Biosynthesis and Drug Discovery Ministry of Education and School of Pharmaceutical Sciences Wuhan University Department of Plant Science and Landscape Architecture University of Maryland College Park 20742 Institute for Bioscience and Biotechnology research University of Maryland

CRISPR-Cas12a genome engineering systems have been widely used in plant research and crop breeding. To date, the performance and use of anti-CRISPR-Cas12a systems have not been fully established in plants. Here, we conduct in silico analysis to identify putative anti-CRISPR systems for Cas12a. These putative anti-CRISPR proteins, along with known anti-CRISPR proteins, are assessed for their ability to inhibit Cas12a cleavage activity in vivo and in planta. Among all anti-CRISPR proteins tested, AcrVA1 shows robust inhibition of Mb2Cas12a and LbCas12a in E. coli. Further tests show that AcrVA1 inhibits LbCas12a mediated genome editing in rice protoplasts and stable transgenic lines. Impressively, co-expression of AcrVA1 mitigates off-target effects by CRISPR-LbCas12a, as revealed by whole genome sequencing. In addition, transgenic plants expressing AcrVA1 exhibit different levels of inhibition to LbCas12a mediated genome editing, representing a novel way of fine-tuning genome editing efficiency. By controlling temporal and spatial expression of AcrVA1, we show that inducible and tissue specific genome editing can be achieved in plants. Furthermore, we demonstrate that AcrVA1 also inhibits LbCas12a-based CRISPR activation(CRISPRa) and based on this principle we build logic gates to turn on and off target genes in plant cells. Together, we have established an efficient anti-CRISPR-Cas12a system in plants and demonstrate its versatile applications in mitigating off-target effects, finetuning genome editing efficiency, achieving spatial-temporal control of genome editing, and generating synthetic logic gates for controlling target gene expression in plant cells.

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Recombination and repeat-induced point mutation landscapes reveal trade-offs between the sexual and asexual cycles of Magnaporthe oryzae

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Journal of Genetics and genomics 2024年第7期51卷 723-734页

作者： Xifang Zong Yaxin Lou Mengshuang Xia Kunyang Zhao Jingxuan Chen Ju Huang Sihai Yang Long Wang State key laboratory of Pharmaceutical Biotechnology School of Life SciencesNanjing UniversityNanjingJiangsu 210000China State key laboratory for Crop Genetics and Germplasm Enhancement Bioinformatics CenterAcademy for Advanced Interdisciplinary StudiesNanjing Agricultural UniversityNanjingJiangsu 210000China Co-Innovation center for Sustainable Forestry in Southern China Nanjing Forestry UniversityNanjingJiangsu 210000China

The fungal disease caused by Magnaporthe oryzae is one of the most devastating diseases that endanger many crops *** shows that sexual reproduction can be advantageous for fungal diseases as hybridization facilitates ***,the pervasive clonal lineages of *** observed in natural fields contradict this expectation.A better understanding of the roles of recombination and the fungi-specific repeat-induced point mutation(RIP)in shaping its evolutionary trajectory is essential to bridge this knowledge *** we systematically investigate the RIP and recombination landscapes in *** using a whole genome sequencing data from 252 population samples and 92 cross *** data reveal that the RIP can robustly capture the population history of ***,and we provide accurate estimations of the recombination and RIP rates across different *** ***,our results highlight a parent-of-origin bias in both recombination and RIP rates,tightly associating with their sexual potential and variations of effector *** bias suggests a critical trade-off between generating novel allelic combinations in the sexual cycle to facilitate host-jumping and stimulating transposon-associated diversification of effectors in the asexual cycle to facilitate host *** findings provide unique insights into understanding the evolution of blast fungus.

关键词： Magnaporthe oryzae Crossover Repeat-induced point mutation(RiP) Effectors Sexual reproduction

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sRNAminer:多功能的植物小RNA分析工具

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Science Bulletin 2024年第6期69卷 784-791页

作者：李冠良陈程杰陈佩珂 Blake C.Meyers 夏瑞 State key laboratory for Conservation and Utilization of Subtropical Agro-Bioresources College of HorticultureSouth China Agricultural UniversityGuangzhou 510640China Guangdong laboratory for Lingnan Modern Agriculture South China Agricultural UniversityGuangzhou 510640China key laboratory of Biology and Germplasm Enhancement of Horticultural crops in South China Ministry of Agriculture and Rural AffairsSouth China Agricultural UniversityGuangzhou 510640China center Saint LouisMO 63132USA Division of Plant Science and Technology University of Missouri-ColumbiaColumbiaMO 65211USA

Small RNAs(sRNAs),found extensively in plants,play an essential role in plant growth and *** various sRNA analysis tools have been developed for plants,the use of most of them depends on programming and command-line environments,which is a challenge for many wet-lab ***,current sRNA analysis tools mostly focus on the analysis of certain type of sRNAs and are resource-intensive,normally demanding an immense amount of time and effort to learn the use of numerous tools or scripts and assemble them into a workable pipeline to get the final ***,we present sRNAminer,a powerful stand-alone toolkit with a user-friendly interface that integrates all common functions for the analysis of three major types of plant sRNAs:microRNAs(miRNAs),phased small interfering RNAs(phasiRNAs),and heterochromatic siRNAs(hc-siRNAs).We constructed a curated or"golden"set of MIRNA and PHAS loci,which was used to assess the performance of sRNAminer in comparison to other existing *** results showed that sRNAminer outperformed these tools in multiple aspects,highlighting its *** addition,to enable an efficient evaluation of sRNA annotation results,we developed Integrative genomics Viewer(IGV)-sRNA,a modified genome browser optimized from IGV and we incorporated it as a functional module in ***-sRNA can display a wealth of sRNA-specific features,enabling a more comprehensive understanding of sRNA *** and IGV-sRNA are both platform-independent software that can be run under all operating *** are now freely available at https://***/kli28/sRNAminer and https://***/CJchen/IG V-sRNA.

关键词： sRNAminer sRNA analysis miRNA PhasiRNA hc-siRNA IGV-sRNA

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Comparative advantages of chemical compositions of specific edible vegetable oils

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Oil Crop Science 2023年第1期8卷 1-6页

作者： Li Xue Ruinan Yang Xuefang Wang Fei Ma Li Yu Liangxiao Zhang Peiwu Li key laboratory of Biology and Genetic Improvement of Oil crops Ministry of Agriculture and Rural AffairsLaboratory of Risk Assessment for Oilseed Products(Wuhan)Quality Inspection and Test Center for Oilseed ProductsOil Crops Research InstituteChinese Academy of Agricultural SciencesWuhan430062China College of Food Science and Engineering Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and SafetyNanjing210023China Hubei Hongshan laboratory Wuhan430070China Xianghu laboratory Hangzhou311231China

As important supplementary to major edible oils, comparative chemical advantages of minor edible oils decidetheir development and usage. In this study, chemical composition of 13 kinds of specific edible vegetable oilswere investigated. The comparative advantages of chemical compositions of these edible oils were obtained asfollows: (1) camellia, tiger nut and almond oil were rich in oleic acid, the contents of which accounted for79.43%, 69.16% and 66.26%, respectively;(2) safflower oil contained the highest content of linoleic acid(76.69%), followed by grape seed (66.85%) and walnut oil (57.30%);(3) perilla seed, siritch, peony seed andherbaceous peony seed oil were rich in α-linolenic acid (59.61%, 43.74%, 40.83% and 30.84%, respectively);(4)the total phytosterol contents of these oils ranged from 91.46 mg/100 g (camellia oil) to 506.46 mg/100 g (siritchoil);and (5) The best source of tocopherols was sacha inchi oil (122.74 mg/100 g), followed by perilla seed oil(55.89 mg/100 g), peony seed oil (53.73 mg/100 g) and herbaceous peony seed oil (47.17 mg/100 g). Thecomparative advantages of these specific edible oils indicated that they possess the high potential nutritionalvalues and health care functions.

关键词： Comparative advantages Fatty acid composition Phytosterols Tocopherols specific vegetable oils Chemical composition

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